CalibReader Downloads & RevenueCalibReader: EPUB & PDF Reader · App Store
12 days old
CalibReader: EPUB & PDF Reader is #105 in Books Free in United States and charting in 7 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperGram 1
CategoryBooks
PriceFree
Released
Rating★ 0.0 (0)
Version1.0.4
Age rating4+
First seen by us
29 Oct 2026
29 Oct 2026CalibReader: EPUB & PDF Reader update history & changes
Last change · 16 events since 27 Oct 2026Full timeline ↓📈Entered the top 100✏️New iPad screenshots✏️New screenshots📈Charting in a new country in 5 charts📦Updated to version 1.0.4📦Now updating weekly🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 16 events
- 📈CalibReader: EPUB & PDF Reader entered the top 100Top Free · Books · CA
- ✏️CalibReader: EPUB & PDF Reader: new iPad screenshots· AU
- ✏️CalibReader: EPUB & PDF Reader: new screenshots10 screenshots (was 10) · AU
- 📈CalibReader: EPUB & PDF Reader charting in a new country in 5 chartsBrazil · Canada · United Kingdom · India · +1 more
- 📈CalibReader: EPUB & PDF Reader entered the top 100 in 2 chartsTop Free · Books · AU · Top Free · Books · DE
- 📈CalibReader: EPUB & PDF Reader charting in a new countryGermany
- 📦CalibReader: EPUB & PDF Reader updated to version 1.0.4• Real page numbers. Each page shows its number in the whole book, counted for your font, size and margins, like a printed book.
• Bring your own fonts. Add .ttf or .otf files in Aa. They stay on your device.
• Footer options. Show or hide the clock, percent and page number, centred under the text.
• Page turns per view. Curl, Flip or Off for each view, so your Duo spread and single page can differ. Drag a page and it turns when you let go.
• Keep your place. After you rotate, fold or change a setting, you land on your line or just before it, without big gaps in the text.
• A calmer Aa panel. Layout, Theme, Font Size and Margins show as soon as it opens; the rest folds away.
• The bookmark ribbon lifts faster when you turn a page.
• iPhone Duo: fixed a case where the open Duo stayed sideways after unfolding.
• The Library tells you when an update is available.… more - 📦CalibReader: EPUB & PDF Reader: now updating weekly4 updates in 30 days, after a quiet two months
- ✏️CalibReader: EPUB & PDF Reader: app got bigger46 MB → 51 MB (+11%)
- 📈CalibReader: EPUB & PDF Reader charting in a new countryAustralia
- 📦CalibReader: EPUB & PDF Reader updated to version 1.0.3• Read straight from your calibre Content Server. Point CalibReader at your server and your whole library is there, at home or away (Tailscale works too).
• Facing pages line up. On a two-page spread, every line sits level with the line across the gutter, like a printed book.
• More words on every iPhone page. Less empty space above and below the text, so each page holds about two more lines.
• Pictures belong on the page. Chapter headings, ornaments and drawings blend into every theme, including the dark ones. Double-tap a picture to see it full screen.
• PDFs on iPhone get the same bottom controls bar as your EPUBs.
• Downloads try again on their own and pick up where they stopped.
• Setting up a big NAS folder is smoother. Books show up while the folder is still being read, and any book that could not be copied is listed with the reason.
• If your NAS is out of reach, say when you are away from home, you now see a calm "Couldn't reach" line and a way to try again, instead of a failed sync.
• Cancel while switching libraries takes you back to the one you had. Stop downloading is one tap.
• Books you mark as read while a library is still syncing stay marked.
• The "Offline" notice clears as soon as you are back online.
• Dark mode: the glow behind covers is softer and rounder.
• iPhone Duo: opening the phone lands straight on your two-page spread, with no turning into place, and the cover on the closed screen holds still when you tilt the phone.
• iPhone Duo: the bookmark ribbon no longer flickers when you rotate the open phone.
• iPhone Duo: the side controls stay put after you switch apps.… more - ✏️CalibReader: EPUB & PDF Reader: new icon
→ 
· RU - 📦CalibReader: EPUB & PDF Reader updated to version 1.0.2• A redesigned app icon: an open book, with Dark, Clear and Tinted versions.
• Margins can now go all the way to zero, and Reset Margins puts them back.
• Floating reading controls are frosted, so they stay readable over text.
• Dropbox and iCloud libraries load faster, and switching libraries is safe and calm, with one status line at the top.
• Plain folders of ebooks now open from your NAS, Dropbox, iCloud Drive and OneDrive, even without a calibre library.
• OneDrive sign-in and folder browsing are more reliable.
• Covers for more books, including series titles.
• iPad in landscape opens books as a two-page spread, iPad mini included.
• On two-page spreads, tap the middle for the controls and the edges to turn the page.
• A sample library of 8 classics to try the app without your own books.
• Fixes for iPhone Duo, dark mode and labels.… more - 🆕CalibReader: EPUB & PDF Reader first spotted by AppInsider#24 in Top Grossing · Books · Russia
- 📦CalibReader: EPUB & PDF Reader version 1.0.1• iPhone Duo: the book cover on the closed phone stays still when you tilt it, and folding shut while holding the phone sideways shows the cover upright.
• iPhone Duo: unfolding while holding the phone sideways no longer leaves the open phone stuck in portrait, and no longer jumps to the wrong page.
• iPhone Duo: the line you were reading stays the first line when you fold, unfold or turn the phone, and each way of holding it remembers its own layout.
• Your reading place is kept through crashes, app updates and library switches, and leaving the app and coming back no longer moves you to earlier pages.
• Turning back now curls the previous page in from the left, as smoothly as turning forward. Turning pages quickly no longer skips a chapter.
• iPhone Duo, closed: swiping to turn the page works wherever on the page you start the swipe.
• On iPhone, Back, Contents and Aa now sit in a small bar under the text, with your progress shown at the top. Tap the middle of the page to show or hide them.
• New app icon, with Dark, Clear and Tinted versions to match your Home Screen.
• New “Book’s own formatting” switch in Aa (off by default) shows the publisher’s styling.
• Scrolling view: the end of a chapter is a firm stop; tap the edge of the page to go on.
• Large libraries sync without freezing the app, books open reliably after an update, and removing a book no longer crashes the app.
• Your own server (SMB) connects on the first try, OneDrive retries a book that failed mid-sync, and the app asks before replacing a different library found in the same place.… more - 🆕CalibReader: EPUB & PDF Reader released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#105
Books FreeMeasured
CalibReader: EPUB & PDF Reader on the App Store
App details
App ID
6777391511
Publisher
Gram 1 LLC
On the store since
Oct 2026
Under a year
Minimum OS
iOS 26.2+
iPhone 11 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
52 MB
Also listed in
Books
Where CalibReader: EPUB & PDF Reader's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | BooksFree | #105 |
 Germany | BooksFree | #99 |
 United Kingdom | BooksFree | #116 |
 Canada | BooksFree | #74 |
 Australia | BooksFree | #81 |
 India | BooksFree | #162 |
 Brazil | BooksFree | #195 |
Apps near CalibReader: EPUB & PDF Reader on the chart
Books Free, around #105.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About CalibReader: EPUB & PDF Reader
Read your EPUBs like a real book: two pages side by side on iPad and iPhone Duo, with real page curls. PDFs open as two-page spreads too. Open your ebook files straight from Files, Safari, Mail or AirDrop, or bring your whole calibre library: CalibReader shelves them with covers and series, and keeps your place on every device.
BUILT FOR IPHONE DUO
Open iPhone Duo and your book becomes a two-page spread, with real page curls. Close it and the book closes: the cover screen shows its cover, leather-bound with the title in gold or the original art. Tap to keep reading, one page at a time. Your place holds through every fold, and turning the open phone to portrait gives you a single page.
YOUR EPUB AND PDF FILES
Any folder of EPUB or PDF files becomes a library with covers, sorting and search.
WORKS WITH YOUR CALIBRE LIBRARY
Point CalibReader at your calibre library folder and every book, cover, series, tag and synopsis appears as you organised it. Nothing to convert, no lock-in.
YOUR STORAGE, YOUR CHOICE
• A folder on your device or in iCloud Drive
• Dropbox and OneDrive
• Your own server or NAS over SMB
• Other apps that share a folder in Files
A READER BUILT FOR LONG SESSIONS
• Two-page spread, single page or continuous scroll, with page curl or flip
• Opens on a title page that turns over like a real one
• Parchment, sepia, black and navy themes, or your own colour
• Font, size, spacing, margins and justification, applied live
• Table of contents, chapter navigation, clock and progress footer
• Built-in dictionary
• A PDF reader with two-page spreads on iPad and iPhone Duo that remembers your page
PICK UP WHERE YOU LEFT OFF
Reading positions and read status sync across your devices through a tiny file in your library folder. Put down the iPad, pick up the iPhone. A free calibre plugin writes read status, % read and last-read date back to your desktop library.
A LIBRARY THAT LOOKS LIKE A LIBRARY
Home with continue reading and recently added; grid, list and series views; filters and search; cover art found automatically when a book has none, and Choose Cover to swap in another edition's cover or bind any book in leather.
3 BOOKS FREE, THEN ONE PURCHASE
Read any 3 books free, and bring in, sync and browse as many as you like. Then unlock your whole library with one purchase. No subscription, no account, no ads, no tracking, and no data collected.
Formats: EPUB and PDF in the built-in reader; other formats open in the app of your choice.
Note: CalibReader opens EPUB and PDF files without copy protection (DRM). Books bought in other apps' stores stay in those apps.
CalibReader is an independent app, not affiliated with or endorsed by the calibre project. calibre is a trademark of Kovid Goyal.
Support: [email protected] · https://calibreader.com
BUILT FOR IPHONE DUO
Open iPhone Duo and your book becomes a two-page spread, with real page curls. Close it and the book closes: the cover screen shows its cover, leather-bound with the title in gold or the original art. Tap to keep reading, one page at a time. Your place holds through every fold, and turning the open phone to portrait gives you a single page.
YOUR EPUB AND PDF FILES
Any folder of EPUB or PDF files becomes a library with covers, sorting and search.
WORKS WITH YOUR CALIBRE LIBRARY
Point CalibReader at your calibre library folder and every book, cover, series, tag and synopsis appears as you organised it. Nothing to convert, no lock-in.
YOUR STORAGE, YOUR CHOICE
• A folder on your device or in iCloud Drive
• Dropbox and OneDrive
• Your own server or NAS over SMB
• Other apps that share a folder in Files
A READER BUILT FOR LONG SESSIONS
• Two-page spread, single page or continuous scroll, with page curl or flip
• Opens on a title page that turns over like a real one
• Parchment, sepia, black and navy themes, or your own colour
• Font, size, spacing, margins and justification, applied live
• Table of contents, chapter navigation, clock and progress footer
• Built-in dictionary
• A PDF reader with two-page spreads on iPad and iPhone Duo that remembers your page
PICK UP WHERE YOU LEFT OFF
Reading positions and read status sync across your devices through a tiny file in your library folder. Put down the iPad, pick up the iPhone. A free calibre plugin writes read status, % read and last-read date back to your desktop library.
A LIBRARY THAT LOOKS LIKE A LIBRARY
Home with continue reading and recently added; grid, list and series views; filters and search; cover art found automatically when a book has none, and Choose Cover to swap in another edition's cover or bind any book in leather.
3 BOOKS FREE, THEN ONE PURCHASE
Read any 3 books free, and bring in, sync and browse as many as you like. Then unlock your whole library with one purchase. No subscription, no account, no ads, no tracking, and no data collected.
Formats: EPUB and PDF in the built-in reader; other formats open in the app of your choice.
Note: CalibReader opens EPUB and PDF files without copy protection (DRM). Books bought in other apps' stores stay in those apps.
CalibReader is an independent app, not affiliated with or endorsed by the calibre project. calibre is a trademark of Kovid Goyal.
Support: [email protected] · https://calibreader.com
Latest updates
1.0.4
• Real page numbers. Each page shows its number in the whole book, counted for your font, size and margins, like a printed book.
• Bring your own fonts. Add .ttf or .otf files in Aa. They stay on your device.
• Footer options. Show or hide the clock, percent and page number, centred under the text.
• Page turns per view. Curl, Flip or Off for each view, so your Duo spread and single page can differ. Drag a page and it turns when you let go.
• Keep your place. After you rotate, fold or change a setting, you land on your line or just before it, without big gaps in the text.
• A calmer Aa panel. Layout, Theme, Font Size and Margins show as soon as it opens; the rest folds away.
• The bookmark ribbon lifts faster when you turn a page.
• iPhone Duo: fixed a case where the open Duo stayed sideways after unfolding.
• The Library tells you when an update is available.
1.0.3
• Read straight from your calibre Content Server. Point CalibReader at your server and your whole library is there, at home or away (Tailscale works too).
• Facing pages line up. On a two-page spread, every line sits level with the line across the gutter, like a printed book.
• More words on every iPhone page. Less empty space above and below the text, so each page holds about two more lines.
• Pictures belong on the page. Chapter headings, ornaments and drawings blend into every theme, including the dark ones. Double-tap a picture to see it full screen.
• PDFs on iPhone get the same bottom controls bar as your EPUBs.
• Downloads try again on their own and pick up where they stopped.
• Setting up a big NAS folder is smoother. Books show up while the folder is still being read, and any book that could not be copied is listed with the reason.
• If your NAS is out of reach, say when you are away from home, you now see a calm "Couldn't reach" line and a way to try again, instead of a failed sync.
• Cancel while switching libraries takes you back to the one you had. Stop downloading is one tap.
• Books you mark as read while a library is still syncing stay marked.
• The "Offline" notice clears as soon as you are back online.
• Dark mode: the glow behind covers is softer and rounder.
• iPhone Duo: opening the phone lands straight on your two-page spread, with no turning into place, and the cover on the closed screen holds still when you tilt the phone.
• iPhone Duo: the bookmark ribbon no longer flickers when you rotate the open phone.
• iPhone Duo: the side controls stay put after you switch apps.
1.0.2
• A redesigned app icon: an open book, with Dark, Clear and Tinted versions.
• Margins can now go all the way to zero, and Reset Margins puts them back.
• Floating reading controls are frosted, so they stay readable over text.
• Dropbox and iCloud libraries load faster, and switching libraries is safe and calm, with one status line at the top.
• Plain folders of ebooks now open from your NAS, Dropbox, iCloud Drive and OneDrive, even without a calibre library.
• OneDrive sign-in and folder browsing are more reliable.
• Covers for more books, including series titles.
• iPad in landscape opens books as a two-page spread, iPad mini included.
• On two-page spreads, tap the middle for the controls and the edges to turn the page.
• A sample library of 8 classics to try the app without your own books.
• Fixes for iPhone Duo, dark mode and labels.
Store changes
What CalibReader: EPUB & PDF Reader changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New iPad screenshots
New screenshots
10 screenshots (was 10)
App got bigger
46 MB → 51 MB (+11%)